US4482597A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulating material
Assignee: SPIC INTERNATIONAL Ltd 23 DYMOKES WAY HODDESDON HERTTORDSHIRE EN11 9LY A BRITISH Co
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Filing: 1982-04-28
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Granted: 1984-11-13
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Expires: 2002-04-28
Abstract
Abstract Insulating material is formed in a continuous strip and comprises a web of flexible impervious polymeric material in which individually spaced elongate pockets have been formed transversely across the elongate strip. Insulation material is located in the pockets which are covered by a sheet of impervious foil material, such as aluminium foil, which forms one outer surface of the completed web of insulating material. The foil is heat sealed to the polymeric material so that the insulation material in the pockets is totally encompassed by impervious material, thus minimizing deteriorization of the insulation properties of the insulation material. The insulation material can be foamed in the pockets or can take the form of powder or foam granules. The construction of the web of insulating material allows the material to be folded into a relatively small volume for the most economic transportation, while in use as an insulating material, the pockets are butted together to form a most effective insulation layer for pipes in buildings, loft insulation, cavity wall insulation or insulation attached to preconstructed wall portions of timber frame houses.
Inventors
- 👤 Peter Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:10
CPC Classifications
B; B32; B32B; B32B1/00; B32B15/00; B32B15/14; B32B15/20; F; F16; F16L; F16L59/00; F16L59/08; B32B2307/00; B32B2307/30; B32B2307/304; B32B2311/00; B32B2311/24; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1007; Y10T156/1016; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24562; Y10T428/24628; Y10T428/24669; Y10T428/24694; Y10T428/24711; Y10T428/24727; Y10T428/24744
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
51 words
An insulating material comprising a flexible web of spaced impervious material, a plurality of individual strips of insulation material extending transverse to the longitudinal axis of the flexible web each strip being completely encompassed by impervious material, and a metal foil forming at least one outer surface of the insulating material.
Claim 2
Dependent Claim
51 words
An insulating material comprising a flexible web of spaced impervious material, a plurality of individual strips of insulation material extending transverse to the longitudinal axis of the flexible web each strip being completely encompassed by impervious material, and a metal foil forming at least one outer surface of the insulating material.
Claim 3
Dependent Claim
26 words
An insulating material as claimed in claim 1, wherein the strips are held within pockets of impervious material forming part of or attached to the web.
Claim 4
Dependent Claim
39 words
An insulating material as claimed in claim 1, wherein the web comprises a single sheet of impervious material folded longitudinally thereof to define overlapping portions which are adhered at spaced intervals to leave closed pockets between the overlapping portions.
Claim 5
Dependent Claim
28 words
An insulating material as claimed in claim 1, wherein the web comprises two sheets of impervious material adhered at spaced intervals to leave closed pockets between the sheets.
Claim 6
Dependent Claim
19 words
An insulating material as claimed in claim 4, wherein the pockets are filled with organic or inorganic insulating material.
Claim 7
Dependent Claim
18 words
An insulating material as claimed in claim 5, wherein the pockets are filled with a porous insulation material.
Claim 8
Dependent Claim
17 words
An insulating material as claimed in claim 6, wherein the porous insulation material comprises polymeric foam material.
Claim 9
Dependent Claim
17 words
An insulating material as claimed in claim 7, wherein the polymeric foam material is in particle form.
Claim 10
Dependent Claim
60 words
An insulation material as claimed in claim 8, wherein the web comprises pockets formed by drawing the web into troughs in a former, filling the pockets with insulation material, applying a laminate of metal foil and polyethelene film over the web and heat sealing the laminate to the web to form pockets of impervious material completely encompassing the insulation material.
Claim 11
Dependent Claim
15 words
An insulating material as claimed in claim 1, wherein the metal foil is aluminium foil.
Claim 12
Dependent Claim
27 words
An insulating material as claimed in claim 1, wherein the strips of insulation material are spaced from each other by at least the width of one strip.
Claim 13
Dependent Claim
19 words
An insulating material as claimed in claim 1, wherein the impervious material of the web is a polymeric material.
Claim 14
Independent Claim
62 words
A method of forming an insulating material comprising providing an elongate web of flexible impervious material, fixing spaced individual strips of insulation material along the web transverse to the longitudinal axis of the web, each strip of insulating material being completely encompassed by impervious material and arranging for at least one outer surface of the insulating material to be a metal foil.
Claim 15
Independent Claim
62 words
A method of forming an insulating material comprising providing an elongate web of flexible impervious material, fixing spaced individual strips of insulation material along the web transverse to the longitudinal axis of the web, each strip of insulating material being completely encompassed by impervious material and arranging for at least one outer surface of the insulating material to be a metal foil.
References Cited (Backward Citations)
US3517805A
Cited
US3576704A
Cited
US3563837A
Cited
US3813279A
Cited
FR2446176A1
Cited
US4333978A
Cited
US4304824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-11-13 | 1988-05-14 | 1988-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-11-13 | 1992-05-14 | 1992-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-11-13 | 1996-05-14 | 1996-11-13 | $7700.00 | Window Closed / Lapsed |